TODAY ONLY Dust Destroyer Duster 7oz (12-Pack) $29.99

Staples has the 12-Pack of Dust Destroyer Duster 7oz Canned Air for $29.99. Free in-store pickup. Tax in most. This works out to be $2.50/can while you can about $2 more for each can for other brands of the same capacity.

These are great for cleaning out your keyboards, blowing dust from your electronics, or fanning out your cubicle when you cut the cheese.